/// <summary>
/// Stop the current session
/// </summary>
public void Stop()
{
if (_dtlsSession != null) {
_dtlsSession.Close();
EventHandler<SessionEventArgs> h = SessionEvent;
if (h != null) {
SessionEventArgs thisEvent = new SessionEventArgs(SessionEventArgs.SessionEvent.Closed, this);
h(this, thisEvent);
}
_dtlsSession = null;
}
_client = null;
}
/// <summary>
/// Create the DTLS connection over a specific UDP channel.
/// We already know what address we are going to use
/// </summary>
/// <param name="udpChannel">UDP channel to use</param>
public void Connect(UDPChannel udpChannel)
{
#if SUPPORT_TLS_CWT
if (CwtTrustKeySet != null)
{
_client = new DtlsClient(null, _userKey, CwtTrustKeySet);
}
else
{
#endif
if (_userKey.PrivateKey.HasKeyType((int)GeneralValuesInt.KeyType_Octet))
{
CBORObject kid = _userKey.PrivateKey[CoseKeyKeys.KeyIdentifier];
BasicTlsPskIdentity pskIdentity;
pskIdentity = new BasicTlsPskIdentity(kid != null ? kid.GetByteString() : new byte[0],
_userKey.PrivateKey[CoseKeyParameterKeys.Octet_k].GetByteString());
_client = new DtlsClient(null, pskIdentity);
}
else if (_userKey.PrivateKey.HasKeyType((int)GeneralValuesInt.KeyType_EC2))
{
_client = new DtlsClient(null, _userKey);
}
#if SUPPORT_TLS_CWT
}
#endif
_client.TlsEventHandler += OnTlsEvent;
DtlsClientProtocol clientProtocol = new DtlsClientProtocol(new SecureRandom());
_transport.UDPChannel = udpChannel;
AuthenticationKey = _userKey.PrivateKey;
_listening = 1;
DtlsTransport dtlsClient = clientProtocol.Connect(_client, _transport);
_listening = 0;
_dtlsSession = dtlsClient;
// We are now in the world of a connected system -
// We need to do the receive calls
new Thread(StartListen).Start();
}